Leveling-machine.



E. E. WINKLEY.

LEVELING MACHINE.

APPLICATION FILED NOV. 12. m4.

1,%38,865 Patented Sept. 4, 1917.

3 SHEETS-SHEET I.

WITNESSES W e we?" E. E. WINKLEY.

LEVELING MACHINE.

APPLICATION FILED NOV. 12. 1914,

Lwfifififia Patented Sept. 4, 1917.

3 SHEETS-SHEET 2.

\MTNESSES )IVENTOR fibziweg' M E. E. WINKLEY.

LEVELINYG MACHINE.

APPLICATION FILED NOV. 12. I914.

Patented Sept. 4, 1917.

3 SHEETS-SHEET 3 INVENTOR TINTTEM ,sTaTns PATENT opinion ERASTUS n. WINKLEY, or. LYNN, MASSACHUSETTS, AssIeNon To UNITED snon MAoHI nnY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION or" NEW J ERSEY.

LEVEIIING-LTAGHIN E1 masses;

Specification of Letters Patent.

Patented Sept. 4, Mitt.

Application filed; November12,*1914. Serial No.871,706.

To all whom it may concern:

Be it knownthat I, ERASTUS E; TVINKLEY,

a citizen of the United States,.residing at.

Lynn, in the county of Essex and State of .lvlassachusetts, have invented certain new and useful Improvements. in Levelingh lachines; and I do hereby declare the 'following to be a full, clear, and exact description of the invention such. as will enable others skilled in the art to which it appertains, to make and:use the same.

The. present invention relates to sole leveling machines, and more. particularly to machines of this type. whichcomprise ashoe supporting jack and a cooperating leveling rollqnovable to change'the relative longitudinal positionof the roll and jack. 1

The object of the present invention is to improvethe construction and arrangement of theshank strap and actuating mechanism embodied in this type of machine, better adapting. the strap for varying sizes and styles ofshoes and improving the quality of the leveling operation. TVith this object in view the several features of the invention consist in certain novel features of construction, combinations and arrangementsof parts hereinafter described and claimed, the ad vantages of which will be obvious to those skilled in the art; from the following description;

In the accompanying drawings illustrating the preferredform of the invention; Figure 1 is aside elevation of a shoe supporting jack embodying the improved features OfconstructiOn, and a leveling roll cooperating therewith; Fig. 2 is an end eleva tion. partly in section. of the construction shown in Fig. 1; andFig. 3 is a top plan View of the construction shown in Fig. 1.

In connection with the leveling of shoe bottoms by machines of this type having a leveling roll which is tipped laterally to impart the desired curvature in cross section to the shoe sole, it is desirable to provide a shank strap or padwhich passes over the shank portion of the sole and exerts a pressure upon the sole tending to force it into contact with corresponding portions of the last. The provision of this shank strap neutralizes the tendency of the leveling roll when operating upon one margin of the shank to lift the opposite margin from the substantially to the desired curvature to be given to the sole, itmay operate as a pressng form to level theshank of the sole by direct pressure.

In the illustrated embodiment of the in vention the shank strap .is connected to an operating member extending lengthwise of the jack, and has provision for adjustment relative tothemember in order that it may be moved lengthwise of the jack to facilitate the application of: the shoe to, or its removal from, the jack, and enablethe position of theshank pad to be adjusted for shoes of varying sizes. The shoe supporting jack is of the general. type embodied in the machine disclosed-in the patent to VVinkley. No. 55.55%, dated March 3, 1896, and is pro vided with the usual toe post 1 and heel post 3 having the tilting last block i. The shoe indicated at 5 is supported upon the jack in the manner shown, and is operated upon by a leveling roll 6 which is inclined laterally-by mechanisn'l (not shown) to impart the desired curvature in cross section to the shoe sole. The shoe is clamped firmly to the jack by a shank strap indicated generally. atlO and having its working portion reinforced in the usual manner by metal strips 11. and 12 respectively. The face of the shankstrap which engages with the sole is shaped to conform substantially to the clesiredcurvature of the sole, and as shown clearly in Fig; 1, the pad is so designed that the top portion, upon which the leveling roll bears, bridges over the hollow in the shank of the shoe when supported upon the jaclnand presents a surface to the leveling roll free from sharp breaks or changes iii curvature which would tend to pocket the roll when traversing back and forth over the sole. The ends of the shank strap are connectedvto a pressure bar indicatedat 14: which is provided with two legs 15 pivoted upon opposite sides of the rear end of the heel post at 16, and connected at the front end by a cross piece 17. As shown clearly in Fig; 1 each end of the shank strap is provided with a depending ear to which is pivoted a coupling member 18 forming the connection between the end of the shank strap and a longitudinal slot 20 formed in the leg 15. The coupling member is loosel retained in the slot by a suitable bolt and lock nut indicated at 19. Owing to the provision of this longitudinal adjustment the shank strap may be readily moved length wise of the shoe in order to facilitate the operation of jacking the shoe. The shank strap after being adjusted in position upon the shoe is pressed into operative engagement with the sole by a U-shaped actuating lever 21 fulcrumed at 22 on the front portion of the heel post, and carrying a suitable type of locking pawl 23 upon its free end which engages with a ratchet toothed segment 24 formed upon the rear end of the heel post. The downward pull imparted to the shank strap by the actuating leveris compounded by providing a yielding connection between the actuating lever 21 and the pressure bar 14:. A pair of these yielding connections are provided and each one consists of a frame 25 pivoted to the pressure bar midway between its ends, and having parallel guide rods 26 upon which a cross head 27 is slidingly supported. A connecting link 28 is secured to the crosshead and is pivotally connected at its lower end to the lever 21 in close proximity to the fulcrum, and a compression spring 30 surrounds the link 28 and is interposed between the crosshead 27 and a stationary abutment 31 secured to the lower ends of the guide rods 26. With this construction, as shown clearly in Fig. 1, the application of a predetermined pressure at the end of the actuating lever imparts a considerably greater pressure to the shank strap tending to press it into engagement with the shoe sole, and furthermore, by properly adjusting the shank strap lengthwise of the pressure bar 14, the point of application of the pressure to the shank strap can be arranged to cause the application of the pressure in an oblique direction. This enables the shank strap to be supported so that the pressure is applied substantially normal to the $10 e of the shank, if desired. This feature is o considerable advantage as the shank strap thereby tends to force this portion of the sole firmly into contact with the last without on the other hand exerting any tendency to distort the shoe or displace it bodily with relation to the last.

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be changed or modified Copies of this patent may be obtained for shank portion of a shoe sole, an actuating member, and connections between the shank strap and the actuating member having provision for adjustment in a direction lengthwise of the jack. i

2. A leveling machine, comprising a shoe supporting jack having a toe post and aheel post, a pressure bar, a shank strap connected wise ofthe bar, means for securing the shank strap in adjusted position on. the bar, and means for locking the barin an operative position to press thestrap in engagement with the sole. i a

3. A leveling machine comprising a shoe supporting jack comprising a toe post and a heel post, a shank strap, a pressure bar fulcrumed at its rear end upon the heel post, an actuating lever fulcrumed at its front end upon the heel post, and yielding connections between the actuating lever and pressure bar. 4 j

4%. A leveling machine,i comprising'a shoe supporting jack comprising a .toe post and a heel post, a slotted bar pivoted upon the jack, a shank strap passing over the shoe. sole and adjustably connected to the bar, having provision for movement lengthwise of the bar and means for securing the shank strap in .adjusted position on the bar.

5. :A leveling machine, comprising ashoe supporting ack comprising a toe post and a. heel post, a pivoted bar, a shank strap connected to the bar, an actuating lever, and yielding connections between the actuating: lever and bar. v j i 6. Aleveling machine comprising a shoe supporting jack having a toe post and a heel post, an actuating lever pivoted upon the front end of the heel post, a pressure bar pivoted to the rear end of the heel post, a shank pad. connected to the pressure bar, and yielding connections between the pressure bar and actuating lever. ERASTUS E. WINKLEYl Witnesses; i

a BURTON W. CARY,

MAY A. I-IunLnY.

five cents each, by addressingthe Commissioner of Iatents, Washington, D. O.

to the pressurenbarandadjustable length- 

